Εἰ θνητὸς εἶ, βέλτιστε, θνητὰ καὶ φρόνει → Mortalis quum sis, intra mortalem sape → Bist sterblich du, mein Bester, denk auch Sterbliches
(see also βαίνω): go, move, step, walk, move slowly, pass slowly
gradi, to walk, step, 5.70.1.